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module Homebrew
def tap
if ARGV.empty?
each_tap do |user, repo|
puts "#{user.basename}/#{repo.basename.sub("homebrew-", "")}" if (repo/".git").directory?
end
elsif ARGV.first == "--repair"
repair_taps
else
opoo "Already tapped!" unless install_tap(*tap_args)
end
end
def install_tap user, repo
# we special case homebrew so users don't have to shift in a terminal
repouser = if user == "homebrew" then "Homebrew" else user end
user = "homebrew" if user == "Homebrew"
# we downcase to avoid case-insensitive filesystem issues
tapd = HOMEBREW_LIBRARY/"Taps/#{user.downcase}/homebrew-#{repo.downcase}"
return false if tapd.directory?
ohai "Tapping #{repouser}/#{repo}"
abort unless system "git", "clone", "https://github.com/#{repouser}/homebrew-#{repo}", tapd.to_s
files = []
tapd.find_formula { |file| files << file }
link_tap_formula(files)
puts "Tapped #{files.length} formula#{plural(files.length, 'e')} (#{tapd.abv})"
if private_tap?(repouser, repo) then puts <<-EOS.undent
It looks like you tapped a private repository. To avoid entering your
credentials each time you update, you can use git HTTP credential caching
or issue the following command:
cd #{tapd}
git remote set-url origin git@github.com:#{repouser}/homebrew-#{repo}.git
EOS
end
true
end
def link_tap_formula(paths, warn_about_conflicts=true)
ignores = (HOMEBREW_LIBRARY/"Formula/.gitignore").read.split rescue []
tapped = 0
paths.each do |path|
to = HOMEBREW_LIBRARY.join("Formula", path.basename)
# Unexpected, but possible, lets proceed as if nothing happened
to.delete if to.symlink? && to.resolved_path == path
begin
to.make_relative_symlink(path)
rescue SystemCallError
to = to.resolved_path if to.symlink?
opoo <<-EOS.undent if warn_about_conflicts
Could not create link for #{Tty.white}#{tap_ref(path)}#{Tty.reset}, as it
conflicts with #{Tty.white}#{tap_ref(to)}#{Tty.reset}. You will need to use the
fully-qualified name when referring this formula, e.g.
brew install #{tap_ref(path)}
EOS
else
ignores << path.basename.to_s
tapped += 1
end
end
HOMEBREW_LIBRARY.join("Formula/.gitignore").atomic_write(ignores.uniq.join("\n"))
tapped
end
def repair_taps(warn_about_conflicts=true)
count = 0
# prune dead symlinks in Formula
Dir.glob("#{HOMEBREW_LIBRARY}/Formula/*.rb") do |fn|
if not File.exist? fn
File.delete fn
count += 1
end
end
puts "Pruned #{count} dead formula#{plural(count, 'e')}"
return unless HOMEBREW_REPOSITORY.join("Library/Taps").exist?
count = 0
# check symlinks are all set in each tap
each_tap do |user, repo|
files = []
repo.find_formula { |file| files << file }
count += link_tap_formula(files, warn_about_conflicts)
end
puts "Tapped #{count} formula#{plural(count, 'e')}"
end
private
def each_tap
taps = HOMEBREW_LIBRARY.join("Taps")
if taps.directory?
taps.subdirs.each do |user|
user.subdirs.each do |repo|
yield user, repo
end
end
end
end
def tap_args(tap_name=ARGV.first)
tap_name =~ HOMEBREW_TAP_ARGS_REGEX
raise "Invalid tap name" unless $1 && $3
[$1, $3]
end
def private_tap?(user, repo)
GitHub.private_repo?(user, "homebrew-#{repo}")
rescue GitHub::HTTPNotFoundError
true
rescue GitHub::Error
false
end
def tap_ref(path)
case path.to_s
when %r{^#{Regexp.escape(HOMEBREW_LIBRARY.to_s)}/Formula}o
"Homebrew/homebrew/#{path.basename(".rb")}"
when HOMEBREW_TAP_PATH_REGEX
"#{$1}/#{$2.sub("homebrew-", "")}/#{path.basename(".rb")}"
end
end
end
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